Free tool
Running Balance Calculator
Add expenses and repayments over time to see the current balance between two people.
Use this when money keeps moving back and forth — groceries, rides, subscriptions, rent extras, partial repayments, or old IOUs — and you need to know what is still open.
Browser calculator
Current balance between two people
This calculator runs in your browser. The values you enter are not sent anywhere or saved to an account.
1. Setup
Examples: $, €, £, ฿, Rp
2. Transactions
Add shared expenses, repayments, or one person paying directly for the other.
Choose the row type
Use shared expense when both people should cover part of the cost. Use repayment when someone sends money back. Use direct expense when one person paid something entirely for the other person.
Shared expense
One person paid, but both people should share the cost. Example: groceries, dinner, taxi, subscription.
Repayment
Someone sent money back. This reduces the current balance and can even flip the balance if they overpay.
Direct expense
One person paid entirely for the other person. Example: you bought something only for Alex, or Alex paid a bill only for you.
3. Current balance
Current balance
All settled
The expenses and repayments currently balance out.
4. Balance timeline
Each row shows what happened, how it changed the balance, and the balance after that row.
5. Copy summary
Copy a clear message-ready summary of the current balance and the rows behind it.
What the copied summary can look like
Current balance: Alex owes you $8.00.
Based on:
- You paid $42.00 for groceries. Alex's share was $21.00.
- Alex paid $18.00 for Uber. Your share was $9.00.
- You paid $12.00 for a subscription. Alex's share was $6.00.
- Alex repaid $10.00.
Remaining balance: Alex owes you $8.00.
What this running balance calculator does
This calculator helps you keep one current balance between two people. Add expenses when one person pays, add repayments when money is sent back, and the calculator shows what is still owed after every row.
It is useful when the situation is not just one bill. For example, one person pays for groceries, the other pays for a ride, a subscription renews, and then someone sends back only part of the money.
What you can include
The calculator is built for short real-life histories, not just one bill.
- shared expenses split equally
- custom shares when the cost is not 50/50
- repayments and partial repayments
- direct expenses paid entirely for the other person
- an optional starting balance
- overpayments that flip the balance direction
- a timeline showing the balance after each row
Use custom shares when the expense is not split 50/50. For example, if one person should cover 70% and the other 30%, the balance updates only by the other person's share.
Running balance vs. splitting one bill
One bill
Split one bill
- Best for one dinner, one trip cost, or one shared purchase
- Calculates each person's share
- Helps people settle that situation
- Usually ends after payment
Ongoing balance
Keep a running balance
- Best when money keeps moving over time
- Includes expenses and repayments
- Shows the balance after each event
- Helps avoid recalculating from memory
A split calculator answers: "How should we divide this cost?" A running balance answers: "After everything that happened, what is still open?"
Example: expenses and a partial repayment
Imagine you paid $42 for groceries. Alex's half is $21. Then Alex paid $18 for Uber, so your half is $9. Now Alex owes you $12. Later, you pay $12 for a subscription, so Alex's half adds $6. Alex sends $10 back. The remaining balance is $8.
| Event | Change | Balance after |
|---|---|---|
| You paid $42 groceries | Alex owes +$21 | Alex owes $21 |
| Alex paid $18 Uber | You owe -$9 | Alex owes $12 |
| You paid $12 subscription | Alex owes +$6 | Alex owes $18 |
| Alex repaid $10 | Alex owes -$10 | Alex owes $8 |
Want to try this exact situation? Load the example in the calculator above.
When this calculator is useful
- a friend sends a partial repayment and you need to know what remains
- you and a partner pay for things back and forth
- one roommate often pays utilities or household costs first
- you pay for family purchases and get repaid later
- old IOUs mix with new expenses
- you want a quick check before sending a repayment update
When a simple calculator is enough
A calculator is enough when you only need a quick answer, the history is short, and both people will settle soon.
- one short trip
- a few recent expenses
- one partial repayment
- no recurring costs
- no need to save the record
When You Owe Me is better
If the same balance keeps changing, it is usually easier to track it in an app instead of rebuilding the history each time.
- expenses keep happening over time
- repayments happen later
- someone sends only part of the money
- subscriptions or recurring costs repeat
- you need a clear history
- you want reminders or calmer follow-up messages
- you want to share a live balance or statement
You Owe Me keeps a running balance, repayment history, recurring entries, reminders, Money Conversations, Live Link, and PDF statements in one place. That makes the next money conversation easier because the history is clear enough to talk about calmly.
Need to keep this balance clear over time?
Use this calculator when you need a quick answer. Use You Owe Me when the same balance keeps changing, repayments happen later, or you need a clear history you can share without rebuilding everything from memory.
Built for the same real-life problem You Owe Me solves in the app: expenses, repayments, reminders, and one clear balance between people.
Related resources
Related tools and guides
Running balance calculator FAQ
What is a running balance between two people?
A running balance is one current total that updates every time someone pays for something or sends money back. Instead of settling every expense separately, you keep one balance that shows who currently owes whom.
How is this different from splitting a bill?
Splitting a bill is usually for one shared cost or one event. A running balance is for ongoing money between two people, where expenses and repayments happen over time.
Can I include partial repayments?
Yes. Add a repayment row for the amount that was sent back. The calculator will reduce the current balance and show what remains.
What if the repayment is more than the amount owed?
The balance can flip direction. For example, if Alex owed you $8 but sent $10, the calculator will show that you now owe Alex $2.
Can couples use this?
Yes. It can help partners understand shared spending without discussing every small purchase immediately. For ongoing relationship spending, You Owe Me keeps the history and balance easier to manage.
Can roommates use this?
Yes. It works well for utilities, household supplies, subscriptions, and other costs where one roommate pays first and the other repays later.
Does this calculator save my data?
No. It runs in your browser for a quick calculation. If you need to keep a lasting record, use You Owe Me.
Do both people need to use the same app?
No. One person can keep the record in You Owe Me and share the balance or statement when needed.
Updated